5y+17= 2y-25 what is the value of y?

 15y + 17 = 2y - 25

Subtract 2y from both sides

5y + 17 = 2y - 25
-2y            -2y

3y  + 17 = - 25

Subtract 17 from both sides

3y + 17 = -25
     -17      -17

3y = - 42

Divde by 3

3y = -42
 /3      /3

y = -14

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